Cloud Computing

A Private Cloud is implemented using a dedicated data center infrastructure of hardware and software that is used privately by an organization. The data center can be on-premises or off-premises. It is not shared with another organization. If the data center is shared, that is a Virtual Private Cloud.

The Cloud Computing Stack in a Private Cloud is dedicated to the organization. If the data center is shared but not the Cloud Computing Stack, that is a Virtual Private Cloud. If both the data center and the Cloud Computing Stack are shared, that is a Public Cloud.

A Private Cloud may participate in a Hybrid Cloud.

For arguments against using a Private Cloud, see Using a Public Cloud instead of an In-House Private Cloud.